February 2012

“Flow” batteries, i.e. batteries filled with a liquid electrolyte that can be pumped out and replenished, have the potential to transform the process of charging an electric vehicle into something that more closely resembles filling it up with gas.

During the most dire period in the Fukushima meltdown, the president of Japanese utility company Tepco tried to evacuate all workers at the stricken reactor. If that order went through, it would have precipitated a worst-case scenario and ultimately the evacuation of Tokyo.

We've poured billions in to low-income housing deep in the suburbs and far from mass transit. The result? Just getting to work and back and paying rent can gobble up half a family's income. Now, affordable housing is getting a facelift.

TransCanada is going to reapply for a Keystone XL permit and wants to start work on the Oklahoma-to-Texas portion of the pipeline. Envia Systems has created the most energy-dense battery ever, which could bring down …